96 vertical profile stations of conductivity, temperature, and depth were collected between Tasmania and Heard Island from May to July 1990. The data includes measurements for salinity, dissolved oxygen, fluorescence, and photosynthetically active radiation. It was collected by the Australian Antarctic Division during the AU9005 cruise.
Use Cases
- Analyze vertical profiles of temperature, salinity, and sigma-T to model water mass structure and ocean stratification.
- Correlate fluorescence and photosynthetically active radiation data to estimate phytoplankton biomass and primary productivity.
- Map geopotential anomaly from station positions to study dynamic topography and current systems.
- Use dissolved oxygen measurements alongside temperature and salinity to assess water mass age and ventilation.
Strengths
- 96 CTD vertical profile stations provide spatial coverage.
- Data includes 22 distinct measured and derived parameters per station.
Limitations
- Data is from a single cruise in 1990, limiting temporal analysis.
- No accompanying water sample (Niskin bottle) data for nutrients or carbon isotopes is available.
Provenance
- Source
- Australian Antarctic Division (AU_AADC).
- Collection Method
- Ship-based CTD (conductivity, temperature, depth) casts to near-bottom.
- Time Range
- May to July 1990.
- Freshness
- null
- Geography
- Southern Ocean, between Tasmania and Heard Island, and around Heard and McDonald Islands.